<template>
  <div class="upload-file">
    <el-upload ref="uploadRef" :multiple="props.limit > 1" name="file" v-model="valueRef" v-model:file-list="fileList"
      :show-file-list="true" :auto-upload="true" :action="updateUrl" :headers="uploadHeaders" :limit="props.limit"
      :drag="drag" :before-upload="beforeUpload" :on-exceed="handleExceed" :on-success="handleFileSuccess"
      :on-error="excelUploadError" :before-remove="beforeRemove" :on-remove="handleRemove" :on-preview="handleDownload"
      :data="updateData"
      class="upload-file-uploader">
      <el-button type="primary" :disabled="disabled">
        <Icon icon="ep:upload-filled" />选取文件
      </el-button>
      <template v-if="isShowTip" #tip>
        <div style="font-size: 12px">
          {{ describe }}
        </div>
      </template>
    </el-upload>
  </div>
</template>
<script lang="ts" setup>
import { propTypes } from '@/utils/propTypes'
import { getAccessToken, getTenantId } from '@/utils/auth'
import type { UploadInstance, UploadUserFile, UploadProps, UploadRawFile } from 'element-plus'
import download from '@/utils/download'
import request from '@/config/axios'
const message = useMessage() // 消息弹窗
const emit = defineEmits(['update:modelValue', 'uploadSuccess', 'removeFile'])

const props = defineProps({
  modelValue: {
    type: Array,
    required: true
  },
  title: propTypes.string.def('文件上传'),
  describe: propTypes.string.def('需上传shp文件压缩包（zip格式）（至少包含dbf、prj、shp、shx、cpg五个文件，且文件名称需相同）'),
  // updateUrl: propTypes.string.def(import.meta.env.VITE_BASE_URL + '/admin-api/attachment/uploadFile'),
  updateUrl: propTypes.string.def(import.meta.env.VITE_BASE_URL + '/admin-api/attachment/uploadShpFile1'),
  downloadFileUrl: propTypes.string.def(import.meta.env.VITE_BASE_URL + '/admin-api/attachment/downLoadFile'),
  fileType: propTypes.array.def(['zip']), // 文件类型, 例如['png', 'jpg', 'jpeg']
  fileSize: propTypes.number.def(50), // 大小限制(MB)
  limit: propTypes.number.def(1), // 数量限制
  autoUpload: propTypes.bool.def(true), // 自动上传
  drag: propTypes.bool.def(false), // 拖拽上传
  isShowTip: propTypes.bool.def(true), // 是否显示提示
  disabled: {
    type: Boolean,
    required: false
  },
  updateData: {
    required: false
  },
  show: {
    type: Boolean,
    required: false,
    default: true
  }
})
// ========== 上传相关 ==========
const valueRef = ref(props.modelValue)
const uploadRef = ref<UploadInstance>()
const uploadList = ref<UploadUserFile[]>([])
const fileList = defineModel<any>()
const uploadNumber = ref<number>(0)
const uploadHeaders = ref({
  Authorization: 'Bearer ' + getAccessToken(),
  'tenant-id': getTenantId()
})
// 文件上传之前判断
const beforeUpload: UploadProps['beforeUpload'] = (file: UploadRawFile) => {
  if (fileList.value.length >= props.limit) {
    message.error(`上传文件数量不能超过${props.limit}个!`)
    return false
  }
  let fileExtension = ''
  if (file.name.lastIndexOf('.') > -1) {
    fileExtension = file.name.slice(file.name.lastIndexOf('.') + 1)
  }
  const isImg = props.fileType.some((type: string) => {
    if (file.type.indexOf(type) > -1) return true
    return !!(fileExtension && fileExtension.indexOf(type) > -1)
  })
  const isLimit = file.size < props.fileSize * 1024 * 1024
  if (!isImg) {
    message.error(`文件格式不正确, 请上传${props.fileType.join('/')}格式!`)
    return false
  }
  if (!isLimit) {
    message.error(`上传文件大小不能超过${props.fileSize}MB!`)
    return false
  }
  message.success('正在上传文件，请稍候...')
  uploadNumber.value++
}
// 文件上传成功
const handleFileSuccess = (res: any, file, fileList): void => {
  const {data} = {...res};
  if (res.code == 0) {
    message.success('上传成功')
    uploadList.value = []
    uploadNumber.value = 0
    fileList.value = [{ name: data.voList[0].attachName, attachName: data.voList[0].attachName, url: data.voList[0].attachId, id: data.id, attachId: data.voList[0].attachId,fileId: data.voList[0].attachId, }]
    emit('uploadSuccess', fileList.value)
  }

}
// 文件数超出提示
const handleExceed: UploadProps['onExceed'] = (): void => {
  message.error(`上传文件数量不能超过${props.limit}个!`)
}
// 上传错误提示
const excelUploadError: UploadProps['onError'] = (): void => {
  message.error('导入数据失败，请您重新上传！')
}
// 下载文件
const handleDownload = async (file) => {
  if(props.downloadFileUrl==='null') return
  const type = file.name.split('.').pop()
  request.get({url: `/attachment/downLoadFile`, params: {attachId:file.attachId,token:getAccessToken()},responseType: 'blob',}).then(res=>{
    if(type=='zip'){
      download.zip(res, file.name)
    }else{
      download.json(res, file.name)
    }
  })
}
const beforeRemove = () => {
  if (props.disabled) {
    message.warning('查看数据不能删除文件！')
    return false
  } else {
    return true
  }
}
// 删除上传文件
const handleRemove = (file) => {
  const findex = fileList.value.map((f) => f.name).indexOf(file.name)
  if (findex > -1) {
    fileList.value.splice(findex, 1)
    emit('update:modelValue', fileList.value)
  }
  emit('removeFile', file)
}

</script>
<style scoped lang="scss">
.upload-file-uploader {
  margin-bottom: 5px;
}

:deep(.upload-file-list .el-upload-list__item) {
  position: relative;
  margin-bottom: 10px;
  line-height: 2;
  border: 1px solid #e4e7ed;
}

:deep(.el-upload-list__item-file-name) {
  max-width: 250px;
}

:deep(.upload-file-list .ele-upload-list__item-content) {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: inherit;
}

:deep(.ele-upload-list__item-content-action .el-link) {
  margin-right: 10px;
}
</style>
